Home / 1,943.10-2,910.01-1,119.65

Finding the Fourth Proportional to 1,943.10, 2,910.01 and 1,119.65

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Solution

The fourth proportional to 1,943.10, 2,910.01 and 1,119.65 is: 1,676.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943.10 : 2,910.01 = 1,119.65 : x
  2. Step 2: Convert to fraction form
    1,943.10/2,910.01 = 1,119.65/x
  3. Step 3: Cross multiply
    1,943.10x = 2,910.01 × 1,119.65
  4. Step 4: Simplify right side
    1,943.10x = 3,258,192.70
  5. Step 5: Solve for x
    x = 3,258,192.70/1,943.10
  6. Step 6: Final answer
    x = 1,676.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.